in your opinion, how many cars would need to be involved in a collision for it to be considered as a mass pile up or a

Question: in your opinion, how many cars would need to be involved in a collision for it to be considered as a mass pile up or a case of great importance?
- Keywords:
  cars,
  case,
  collision,
  crash,
  importance,
  involved,
  mass,
  pile
Asked by johny to Mark on 21 Mar 2011 in Categories: Forensics.
- Mark Hill answered on 21 Mar 2011:
  
  Hi Johny,
  
  For a crash on a motorway or dual carrigeway, a collision of more than 11 vehicles is classed as a ‘Mowinc’ or a major collision. If this occurrs, then the emergency services all have set attendance plans that they can swing into action.
  
  I fa crash has only one vehicle, with a casulaty with life-threatening injuries, or a fatality, then that is considered to be of great importance. An action plan is also used by the emergency services. When this is commenced, that is when I am called to attend the scene.
  
  Thank you for a good question.
  
  Mark.

Question: in your opinion, how many cars would need to be involved in a collision for it to be considered as a mass pile up or a case of great importance?